Heap-based buffer overflow in Windows Server - CVE-2025-55697
Published: October 15, 2025
Vulnerability identifier: #VU117161
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-55697
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Azure Local. A local user can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Windows Server
How to mitigate CVE-2025-55697
Install updates from vendor's website.
Windows Server - addressed in versions 2012 R2 6.3.9600.22824, 2022 23H2 10.0.25398.1913, 2025 10.0.26100.6899